You'll be approaching Venice on the A4 Autostrada from the North or South (if you're driving in on the A27 from Trieste, you'll merge with the A4 a few kilometers North of Mestre).
Use the central Mestre exit if you're coming from the South.
From the North, take the Mestre Est-Favorita exit.
Follow the signs to your destination, depending on whether you'd prefer to park on the mainland (which is easier) or at the edge of Venice's historic center (which can be easy or a nightmare, depending on whether traffic on the causeway is backed up).
Throught Terminal Fusina, directly connected by the highway A4 and by the SS.309 Romea, it's also easy to reach Punta della Dogana and Palazzo Grassi. Follow the signs "Parking + Boat to Venice", park in Fusina, catch the public ferry line Fusina-Zattere. The arrival point is located only 200 mt. from the exhibition sites.
Many domestic and international trains discharge passengers at the Stazione Ferroviaria Santa Lucia, modern railway station in the historic center, next to the causeway that leads to the mainland.
The major airlines fly into Marco Polo Airport, Venice International Airport, which is 6 km from the city on the Venetian lagoon.
Next, follow the signs outside the terminal doors to the Alilaguna water bus (it's easy to take an Alilaguna water bus or a water taxi from Marco Polo Airport to Venice). Alternatively, you can ride an Atvo or Actv airport bus to reach the Piazzale Roma.